[ASK] EPM Add-In Show Blank (cannot show properly)

Hi guys,

I have problem with EPM add-in, some dialog box cannot display properly.

The left side of EPM Sheet Options is blank :

The right side of EPM Report Editor with tab options does not show anything :

This picture icon very small and some text become hide (I cannot change the size of the box) :

I am using :

EPM Add-In 10.0 SP 20 Patch 1 (before I used SP 17, has the same issue).

Windows 8.1

Office 2013

Screen resolution 3200 x 1800 (I have adjusted lower resolution until 1366 x 768 but no effect)

Please advice me what should I do.

Thanks you.